I love Rose as a first name and might have considered it if my middle name wasn't Rose... I'm not a huge fan of Rose as a middle because it's just so overused, like all other one syllable middle names.

Rose as a first name is fabulous! I have only met one young Rosie, so I think Rose is still a bit under the radar. Honestly, I consider Rose in the same boat as names like Jane and Mary. Sort and sweet, but classic and timeless. If you want to "dress it up" a little bit, how about Rosa? Rosa is definitely a rare and beautiful find.

I do somewhat agree with you that Rose as a middle name seems like a safe/borderline filler option. (Obviously, this doesn't apply if Rose has significant meaning or family ties to you.). But otherwise, yeah, it seems a little filler.